John b



(No Model.)

J. B. PRICE.'

l LOCK.

No. 481,422. Patented Aug. 23, 1892.

i2/Mg UNITED STATES PATENT OFFICE.

JOHN B. PRICE, OF WOLLASTON, MASSACHIISETTS.

. LOCK.

SPECIFICATION forming part of Letters Patent No. 481,422, dated August 23, 1892.

Application tiled March 30, 1892.

To all whom, t may concern:

Be it known that I, JOHN B. PRICE, a citizen of the United States, residing at Wollaston, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Locks; and I do hereby declare the following'tobe a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of the present invention is to provide a combined lock and latch which can be easily and quickly applied to a door by simply boring therein from opposite sides holes of different diameters, which are in axial alignment, the smaller hole being on the outside of the door and larger hole on the inside thereof.

With these ends in view my invention consists of a sectional annular lock-casing, in which the larger annular, member contains the latch adapted for manual manipulation from the inside of a door,'and the smaller cylindrical section of the lock-casing contains the rotating barrel or plug carrying the keyoperated plungers or pins which control the' spring-pressed tumblers adapted for engagement with the slotted cylinder forming the smaller section of the lock-casing.

The invention further consists in the novel combination of devices and peculiar construction and arrangement of parts, as will be hereinafter fully described and claimed.

In the accompanying drawings, Figure l is a vertical longitudinal sectional view th rough my lock and latch applied to a door with the key inserted therein. Fig.l 2 is a vertical transverse sectional View on the line :1; x of Fig. 1, looking in the direction indicated by the arrow, showing the latch retracted. Fig.V 3 is a View similar to Fig. 2 with the latch projected. Figs. 4L and 5 are elevations looking at opposite ends of the revoluble plug carrying the tumblers and key-actuated plungers or pins. Fig. 6 is an enlarged sectional View taken longitudinally through a part of the plug to show the tumblers, plungers, and springs more clearly. Fig. 7 illustrates in detail the parts of the locking devices. Fig. 8 is a detail view of one member or part of the lock-casing, looking at the outside thereof.

Like letters of reference denote correspond- Serial No. 427,108- (No model.)

ing parts in the several figures of the drawings.

A designates the lock-casing, which consists, essentially, of the two sections or members B C, which are annular or circular in form and suitably connected or joined together. The section B of the lock-casing is larger in diameter than the section O, and the two annular sections B C are arranged in axial alignment to adapt them to be readily fitted to a door, in which it is only necessary to bore two aligned holes, the larger hole being on the inside of the door and the smaller bore on the outside of the door. The section B of the lock-casing is fitted in the hole of large diameter on the inside of the door, and the smaller section or cylinder C of the lockcasing has awide annular flange cat its inner end, said cylinder C being inserted from the inside of the door into the smaller hole or bore therein, so that the Wide iange c on its inner end fits in the large section B of the lock-casing and is suitably secured thereto. It is evident that the ange c of the cylindersection O can be itted in and secured by screws to the large open inner end of the section B, and that after the holes have been bored the lock-can be readily adjusted in the door by simply passing the small section C from the inside of the door, the latter having its outer end lush with the front face of the door. The large section B of the lock-casing has its outer end closed by ahead b, and the center of the head is furnished with a bearing d, in which is journaled an arbor or shaft D, the outer end of which is furnished with a handle D', by which the arbor can be easily turned to retract the latch E within the lockcasing. This latch has its bevel-nose passing through an aperture c in the side of' the casescction B, and it is guided and held in place by means of the lixed studs c c within the casing-section B, the latch being normally projected by means of a coiled spring E', fitted between the inner end of the latch and one side of the casing-section B. At or near its middle the opposite faces of the latch are recessed, the recess in one face forming the shoulders f f and the recess in the other face forming the shoulders f f. The inner end of the arbor or shaft D carries an arm D', which works in the recess between the shoul- IOO ders f f, and this arbor and its arm are adapted to retract the latch within the casing, the arm D being limited in one `direction*by-means of a pin or stop d, Xed in the latch in the path of the arm D. In the recess in the other face of the latch formed by and between the shoulders f f operates 4the-barrel-piece 'Fr which is adapted to inipinge against one of the shoulders to eiect the withdrawal of the latch from the keeper after the key has been inserted in the barrel to retract the tumblers from engagement with the cylinder or section C of the lock:V This operating-pieceF is rigidi with the barrel, being arranged radially,` thereof on its inner end adjacent to the latch, as shown more clearlyin Fig. 1, and the movement of theroperating armor piece F islim ited in one direction by a stop or pin F 0u-- thelatchrbin the path of the operating-piece.-

The1cylinder or section-C of Vthe-lock-casing` hasitsperiphery formedWit-h a seriesotI threeor moreradial slots g `h i, which extend from the ilange'or plate c to the outer closedY end c@ `of thecylinder, laudf=from one of'theseslots g extendsla segmental slot g', which liesin'a planet 1 substantially at right angles'l to u the slotgu- I isthey barrelor plug ot' the-locking mech anismywhich: is ot such diameter that it canl turn ormove on its aX-isfreelyin'the cylinderA C, in Which'it is snugly iittedfI 'lliisbarreli or plug .isprovided with a Vlongitudinalpas-tV sa e I', which extends entirely throufrh l-theicenten of the plngfrom end tol end thereof,= and. in itsisurface oriperiphery'areformedraw dial-recesses 7' k l, which correspond to andf are adapted to' align with the slot-s g h c' ini the cylinder-C. Each of ythese radial recesses in theplugor barrelreceives ytvv-o tumblersKL f of theiformshown in Fig. 6 of the'drawings:L Eachv tumbler is madeor stamped froma sin-- gle piece of ametal, and' it-has a heelk, which"A projects -beyond one end ot'` the body of the=-` tumbler, and the: aperturey 10"' forf the pivotpin Z,which'isl1o'cated belowfand at-one sidel of theheel'k; Against theheel ofthepivot-f tumblerbears a plunger orv pin m, which passes `through'a radial aperture n in thefplug or barrel, and the inner part off-the-aperture is contractedsto' form a :scatfnfor the shoulder fm", formed byreducing the inner end `of the plungeror pin/m, so that `the latter is prevented from: passing entirely through the radial openingtinto the longitudinal 4central bore I', providedfor the reception of `the key. The tumbler ispivoted bythe pinl atian in-H termediate point of itslengthfand against "the free end of the tumbler bears 'a coiled spring o, which; is :seated in a socket oy in 'ther barrel or plug,.provided on onesideflofthel radial` openingm. thereirnthe function of thespring 0 being 4to throw 4one edge of-Athefr'ee end of the pivoted tumbler beyond the surface of the barrelfand toudepress the plungerory pin into the central' bore or .passage AI ot `the plug. f As" each of `then-.hree radial recessesinf the plug` has` two tumblers seated therein vand each' tumbler has an independent spring and actuating-plunger, it Willbe seen that I providea total of.'- `-six tu m-blersarrangedrin pai rsspaced equidistant around the periphery of the barrel, and the six pins or plungers are forced or projected into the longitudinal bore I in 1 the path ofcthe Akeysofas to be forced or pressed outward by the proper wards on the key.

This being the construction of my improved lock and latch, the operation may be described as follows: To apply the latch to a door,-:two:aligned holes are bored therein of diiiereutdiameters and the lock passed from the inside of the door, so that its cylinder C enters the smaller hole and the section B is ing suitably fastened-together and 'th-e. lock securedin'the door. Thelatch'isnormaHyj projected by itsspri'ng,"aud` the plug or barrel is so adj usted-that its tumblers tit'intdthe c radialfslots in thecylinderor section C'ofthe loclecasing,k thus preventing the barrel 'from being turned, While the operatingfpieceF f 'j theplug or barrelbearsagainst Voneofihe shouldersfofthe latch and 'prevents it'frmx;

being retracted, except Vby the arbor and the" key turning the'plug.y

I` Itlis evidentthat` the arbor `can Abe turned 1 from-the inside of `the doorto retract the latch, but to open the door from't-heoutside4 it isniecessary' to insert `the ,proper form of keyirrto` the barrel in'orde'rto force `all of 'the plungers outward, thereby turning 'the tum-.vV

blersontheirl pivots and forcing allothe tumblersv to lie flushV with "the surface of theV p; plug; after-Which the keyA can be turned' to rotate the yplug or `barrel suflciently for' the" operating-piece F 'therein to retract the latchl l 'lhe'oscillation of the-plug orbarrelis'liim ited in both directionsfbyapinor studp,'Work-` ing in thesegmental slot g" in the cylinder C,

said: 4stud being rigid with thep1ug,asshown.

ITO

I am aware `that'changes'and alterations in the form and proportionl ofparts-and details;

of construction'- `of4 the* mechanismhereinshown and described'as anembodiment of" my j' invention can be -made without 'departing from the spirit or sacrificing the advantages..

of my invention.4

j What I claim as'newisl l 1.' In a locksubstantially ashereinshown Y and described, "the sectional casing compris-' ing the two annular membersA. C, ofwhi'ch", the smaller member. Cj is arrangedA .in axial alignment with Lthe 'largermemberand provided at its innerenddvith :a radial :liangeorW plate c, secured'direct-ly` to said larger' mem ber, combinedvvith a bolt 4guided i'n the mem#` ber'A 'and `a keyactuated plug seated in 'the' smaller member and having. an arm'F; which operates 'between suitablestops on` the bolt,"

asl and Afor the purpose :described 'l 2. In' a lock'substantially 'as herein shownLA `and described, the `combination of` an annu-n lar sectional casing having its aligned lmem-U bers connected rigidly `and directly together and one member provided with a spindlebearing, the latch-bolt F, guided in one member of the casing and recessed on bothsides thereof to provide the two sets of shoulders 5 f f', an axially-turning plug seated in the other member of the casing and provided at its inner end with a radial arm F, which operates between the shoulders f of the bolt,

l and a spindle journaled in the bearing of one xo member of the casing and also provided with a radial arm that ts between the shoulders f of the bolt, as and for the purpose described.

3. In a lock substantially as herein shown and described, the sectional annular casing z5 adapted to be fitted in a door-stile by having two holes therein of diiferent diameters, comprising an annular divided casing A C, in which the members are united rigidly and directly together at their inner meeting ends,

2o combined with a latch-bolt guided in the member A, a spindle, and a turning plug seated in the member C and connected directly to the latch-bolt, as and for the purpose described.

4. The combination, with a fixed slotted cas- 2 5 ing, of the axially-turning plug or barrel seated therein and having the radial tumblerrecesses, the tumblers pivoted eccentrically in said recesses and normally projected by springs beyond the surface of the plug or bargorel, and the plungers or pins bearing against the tu mblers and normally forced thereby into a longitudinal key-passage in the center of the barrel or plug, substantially as described.

5. The combination, with a slotted casing,

vof the recessed axially-turning plug, the se- 3 5 ries of tumblers, each pivoted independently -in the plug orbarrel and projected at one end beyond the surface thereof by a separate pressure-spring, and a separate pin or plunger bearing against the heel of each tumbler 4o and forced thereby into a key-opening in the barrel, substantially as described.

6. The combination, with a radially-slotted casing, of an axially-turning plug having the radial recesses in its surface and a central 45 key-passage, the series of tumblers, each eccentrically pivoted in one of the recesses and having a heel, a spring for each tumbler, seated in a socket in the plug or barrel and bearing against the free end of the tumbler, 5o and a radial pin or plunger operating in a seated radial opening in the plug and bearing against the heel `of the tumbler, as and for the purpose described.

In testimony whereof I affix my signature in 5 5 presence of two witnesses.

JOHN B. PRICE.

Witnesses:

CHAs. F. THAYER, HENRY J. THAYER. 

